Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session T00: Poster Session III (1pm-4pm PST)
1:00 PM,
Thursday, March 9, 2023
Room: Exhibit Hall (Forum Ballroom)
Sponsoring
Unit:
APS
Abstract: T00.00064 : Electric field tunable hybridization in MoSe2 bilayers*
Presenter:
Xiaohui Liu
(University of Texas at Austin)
Authors:
Xiaohui Liu
(University of Texas at Austin)
Zhida Liu
(University of Texas at austin)
Yue Ni
(University of Texas at Austin)
Di Huang
(University of Texas at Austin)
Jiamin Quan
(University of Texas at Austin)
Hyunsue Kim
(University of Texas at Austin)
Yanxing Li
(The University of Texas at Austin)
danfu liang
(University of Texas at Austin)
Frank Y Gao
(University of Texas at Austin)
Yongxin Zeng
(University of Texas at Austin)
Nemin Wei
(University of Texas at Austin)
Takashi Taniguchi
(National Institute for Materials Science)
Kenji Watanabe
(National Institute for Materials Science)
Chih-Kang Shih
(University of Texas at Austin)
Allan H MacDonald
(University of Texas at Austin)
Xiaoqin Elaine Li
(University of Texas at Austin)
Transition metal chalcogenide (TMD) monolayers and twisted bilayers have been extensively investigated with most studies focusing on unique exciton resonances and correlated insulator states. Many effects observed in twisted bilayers are also present in natural bilayers, which is a much simpler system less susceptible to inhomogeneity introduced by a variety of factors. Here, we study a dual-gated MoSe2 natural bilayer using optical reflectivity measurement and discover the distinct properties of polarons (bound electron-hole pairs).The attractive polaron signal shows strong layer hybridization, which is tunable by electric field.
*We gratefully acknowledge funding from NSF DMR-1720595, NSF ECCS-2130552, and WelchFoundation F-1662. The work was partly done at the Texas Nanofabrication Facility supported by NSF grant NNCI-2025227.
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